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  3. question 3 8 cm 2 cm 2 cm 8 cm...

Question: question 3 8 cm 2 cm 2 cm 8 cm...

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Question 3 8 cm 2 cm 2 cm 8 cm 0.5 cm N 500 Core thickness-3 cm Rajah S3/ Figure Q3 Pertimbangkan teras magnetik dengan jurang udara seperti ditunjukkan dalam Rajah Bahan teras mempunyai kebolehtelapan relatif 6000 dan keratan rentas segi empát tepar 2cm 3cm Gegelung mempunyal 500 lilitan. Diberikan bahawa kebolehtefapanfuang kosong ialah o4 x10 Consider the magnetic core with an air gap as shown in Figure Q3. The core material has a relative permeability of 6000 and a rectangular cross section 2cm x 3cm. The coil has 500 turns. Given that permeability of free space is Ho 4r x 10-7 a) Lukiskan litar magnet yang berkenaan Draw the equivalent magnetic circuit (2 markahlmarks) b) Tentukan-kere ras core Determine the cross-sectional area (Acore) and reluctance (Rcore) of the core (4 markah/marks) c) Tentukan Ke mana kesan fringing tidak botehr diabaikan Determine the cross-sectional area (Agpl) and reluctance (Rgap) of the air-gap, which the fringing effect cannot be ignored (4 markah/marks) d) Tentukan arus-yang-diperlukan untuk mendapat-kepadatan-f lam jurang udara. Determine the current required to establish a flux density of Bgap 025T in the air gap. (5 markah/marks) 5/6

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